https://www.techradar.com/news/new-meltdown-and-spectre-exploits-have-been-built-but-arent-in-the-wild-yet

We heard last month that white hat security researchers could be close to engineering a usable exploit for the Meltdown and Spectre vulnerabilities, and this has now actually happened.

Security experts from Nvidia and Princeton University have authored a new research paper which details ‘MeltdownPrime’ and ‘SpectrePrime’, exploits which leverage these gaping flaws in modern processors via side-channel timing attacks.